<th class="table-id"><input type="checkbox">&nbsp;全选</th>
<th style="width:20%;">题库名</th>
<th class="table-status" style="width: 50px;">题库层级</th>
<th class="table-status" style="width: 55px;">试题数量</th>


<th class="table-status" style="width: 55px;">题库封面</th>
<!-- <th style="width:13%;">知识点</th> -->
<th class="table-status" style="width: 40px;" >状态</th>

<th class="table-status" style="width:15%;">试题管理</th>
<th style="width: 24%">操作</th>